Door-knob fastener.



F. E. BEARDSLBY. DOOR KNOB PASTENER. APPLICATION FILED NOV.18, 1908.

Patented Nov.30, 1909.

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2 9 tn a wee FRANK n. nnmnsLnY, or TRAVERSE our, moment DOOR-KNOB rasrnnn'a.

Specification of Letters Patent.

Eatentedliov.

Application filed ltfov enioer 18, 1938. deriakllo, 153,5315.

To all whom it may concern:

Be it known that l, FRANK E. Bniisnsnnr, a citizen of the United States, residing at Traverse Gity, in the county of Grand Traverse and State of Michigan, have invented a new and useful Door-Knob Fastener,,of which the following is. a specification.

This invention relates to .door knobs, and particularly to means whereby the knobs may be fastened upon the spindle, the object of the invention being to provide a fastening device whereby the knob may be rigidly fastened to the spindle and adjusted along the spindle at any pointdesired but preventing the removal of the knob tromthe spindle. l l

A further object is to provide a novel fastening device wherebythe knob may be attached to the spindle without the necessity of screw holes being made in the spindle,

thereby weakening the same, and thus doing away with the expense of drilling andf' tapping these holes. 1

My invention also does away with the lead-bushing in the knob and the usual screw and washers.

My improvedfastening device allowsithe knob to be adjusted accurately without the use of tools and by any unskilled workmen,

My invention consists in providing a hollow knob with one or more inwardly projecting tongues or pawl's, preferably struck up from a sheet metal blank, which awls project outward and permitfthev spin le to be inserted into the knob, but when the knob is drawn upon jam upon the spindle, thus. preventing the withdrawal of the knob there being provision for the insertion o l a key through the sides 0% the knob whereby the pawls may be raised when desired top-ermit the knob to be removed. w J I in the drawings Figure l is a side'yiew of a door spindle with itsopposed knobs, one of these knobs beingshown in section. Fig. 2 is an interior face view of the inner member or body of the knob. Fig. 3. is a face view of the bridge plate with its tongues. Fig 4: is a perspective view showing the interior of the body of the knob with. the bridge plate in place and a key inserted whereby the tongues are raised to permit the withdrawal of a spindle.

Similar reference numerals designate corresponding parts'in all the figures. of the drawings.

in the drawings, 2 designates the ordinary eral. movement trarisy ers square spindle of. a door knob," and hone; member or body portion of the shell; of, a knob. This is preferably made ot sheet metal, and maybe made in any desired form. The center of the sheet metal-shell. 3 is formed with a square opening ethrough which the spindle 2. passes. The openendoi the body 3 is covered. by the cap 5 which may be attached to the body in any desired way as by the interloekin densest.

A plate. 7 preferably oi sheet steel; is attached to the interior face of the body 3; in" any suitable manner as by soldering, along the margins 8. This plate '1 extends across the interior. space of the body 3, and has formed in it the-opposed tongues-9. The in,-

her ends of the tongues are provided with non-circular recesses for enga ing opposite sides of, the smooth. knob spind e. 'Whenthe tongues are pressedaoutwardly, the opening 10 forms angular recesses for receiving the, opposite edges of; the knob spindle other, than those engaged by the spring tonguesQ, so that the plate 7; cooperates with the non; circular opening a to prevent turning oi the knob inde endently of the spindle. The lt a p t s of c r effiermeq i h. a square aperture 10 through its center for; the passage of the spindle 2, and the toiigues 9, are notched at their. extremities soasto etigage with the corners oi -the, square spindle, 2. The plate 1. forms a transyerse partition, in the kn b, and; the innerend ot the knob spindle 2 fits in the openingv l0, sothat the a d: ns g al p -t w t h openin e to firmly hold, the knob in. against lat,- y in he p n.-

dle 2.

Lt will be seen from Fig. 3 that the tongues 9 arestrnck up from the blank. off the bridge plate 7, and that theblank is so formed that the ends of these tongues project somewhat inward of" the square opening 10, This is so that when the tonguesare flattened into the same plane as the bridge plate or when there is any force acting to bring, these tongues into this plane, they will tend to contract the opening between their ends, Thus when an attempt is made to withdraw the, spindle from the knob, the tongues will the knob. As stated above, T prefer to use sheet steel to form the bridge plate 7 and tongues 9 asthis material will give requisite stiffness and,strength to the tongues 9 to prevent any chance of their, yielding and permit the notched ends of the tongues .to bite into and gri upon the spindle 2. While the kno as shown, may be easily inserted upon a s indle in the lposltion shown in Fig. 1, it wil be impossib e to withdraw the knob from engagement with the spindle and in orderto permit this withdrawal I rovide the body 3 with the openings 11 so ocated in the body that the instrument inserted through the openings may be inserted also behind the tongues in their elevated position, and thus hold them outward and permit the withdrawal of the spindle.

In Fig. 4 I show the instrument or'key for this purpose inserted through the holes. The key 12 consists of a staple-shaped instrument of wire having two parallel'arms 13 adapted to be inserted through the openings 11 on either side of the spindle 2 and between the ends of the tongues 9 and the face of the bridge late 7. It will be seen that this key may be operated to raise the tongues from engagement with the spindle and permit. the knob to be withdrawn, and that unless some such instrument thus is used, it will be impossible to withdraw the knob 4. It will also be seen that the knob may be pushed back upon the s indle as accuratel and delicately as need and that it will be held on any portion of the spindle. The delicacy with which the knob may be adjusted is due to the fact thatthere are no ratchet teeth with which the pawl-like tongues 11 engage but that the to es have a constant engagement inward aong the 4 whole edge of thespindle.

' with expensive emits the knob to It will b'eseen that m improvediastening deviceis simple an extremely -rbheap; that it is strongl and durable; d e'away rilling and ta ping; perbe. set into .-c ose e'ontact with the door has no screws to becmne loose and drop out; when desired,.and that unless the pawls are lifted, the knob cannot be withdrawn from its engagement with the spindle.' It will also be seen that the bridge plate, supported as it is within the shell of the knob, forms a brace or support to the indle, thus reventing the knob from gett ng out of a me ment with the-spindle or becoming loose and shaky, The spindle is supported at twoomts, namel where it enters the knob and y the bridge plate, where it is held fast by' the tongues. 1

While I have shown op new ton es .9 I do not wish'to be limis, on B ngu this 1% the best form. One to le might 7 used, euga 'ng with theeorner or of the spindle. have-shown these as engaglng with the corners of the spindle, and believe that this is the best, but I may also make my device with the tongues engaging that it can be easily removed the withdrawal of the .knob

- spindle opening, said the flat sides of the spindle without departmg from the spirit of my invention. 'The actual details of making these tongues and supporting them within theshell 3 might be varied thou h I believe the manner shown to be the sim est and most racticable.

From the oregoing it is t ought that the construction,

be a parent to those skilled in the art without stood that various details of construction may be resorted to without departing from the spirit or sacrificing any of the advanta es of-the invention. 5

avin thus fully described my invention, what I c aim as new and desire to secure by Letters Patent, is

- ll A hollow door knob having a plate attached transversely across itsinterior formed with a spindle opening in its middle and with an integral spring ton ue centrally and outwardly pro ecting and adapted to engage with saidspindle to prevent the withdrawal thereof.

2. A hollow sheet metal door knob having a spindle opening in one side and havin .a plate of sheetmetal attached to the interior of the knob and crossing the same transversely, said plate having a central opening for the with the spindle opening-in the knob, and o posed resilient tongues struck up from t e plate, said tongues, when closed, centrally projecting yond" the edges of the opening in the plate and ada ted to be forced outward by a door spindle inserted into the knob in one direction but to rip said door spindle upon a retraetil'elimovei ment thereo 3.. A hollow door knob having in its interior a transverse metal plate provided with a central many-sided opening and op osed-resilient tongues struck up from the p ate, said tongues projecting centrally and outwardl and havmgeach 'afspindle engaging note in its outer end adapted to engage on both operation and many advan tages. of the herein described inventlon will rther description, and it will be undersides of a spindle inserted through said knob of the plate to preand the central opening h kn b fr d t e o om sai vent the withdrawal '0 spindle. i

4. A hbllow door knob having in its inte rior opposed sprin tongues adafited to engage with a doorin P ob spindle to prevent from the spindle,

said knob having openings in its side opposite to said tongues to permit the insertlon v of an instrument to engage with and raise the tongues from engagement with the spindle.

511A hollow .door knob shell having .a

spindle opening and a transverse plate crossmg the interior of the shell I late having opposed centrally and outwar y projecting integral in line with the 95 passage of thespindle in alinement therein, said plate having tongues adapted to en age with a spindle to prevent its withdrawa the door knob shell being provided with a pair of perforations in one side, each of the perforations being in alineinent with one of the tongues to permit the introduction of an instrument to raise the tongues from engagement 'with the door spindle.

6. A hollow door knob having an opening for receiving a knob spindle, a partition housed within the knob having an opening alining with the knob opening, and means carried by the partition for gripping the knob spindle to lock the knob thereon.

7 A hollow door knob having a spindlereceiving opening, a transverse plate separate from the door knob and secured wholly an opening disenin of the of t e knob the the posed in alinement with the o knob to receive the inner en spindle, and a yielding dog carried b plate to grip the knob spindle to lock knob thereon.

8. A device adapted to be secured. in a hollow knob for attaching the latter to its spindle, comprising a plate having a noncircular openin and a spring tongue integrally connecte with the plate and arranged with its free end normally extending into the opening. I

9. A device adapted to be secured in a hollow knob for attaching the latter to its spindle, comprising a plate having an opening, and oppositely-disposed spring tongues struck out from the opening and arranged with their free ends normally projecting into the opening and yieldable to either side of the late.

10. X device adapted to be secured in a hollow knob for attaching the latter to its spindle, comprising a plate of resilient .metal having opposed angular recesses forming seats to receive the knob spindle, and yielding tongues struck out from the plate and having angular recesses for gripping the spindle.

11. A door knob comprising a hollow body, a member fixed therein and having a non-circular opening, and spring" tongues carried by the member and provided with angular recesses at their free ends for engaging op osite sides of a knob spindle.

12. doorv knob having a tubular extension formed with a non-circular spindle-receiving opening, a member arranged transversely in the knob and having anon-circular opening disposed in alinement with the openlng of the knob, and a pair of oppositely-disposed yieldingtongues or dogs carried by the member and having their innerfree ends normally-disposed in the opening, said free ends of the tongues being provided with angular recesses.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

FRANK E. BEARDSLEY.

Witnesses:

GLENN W. CURTIS, Evnn'r S. WILLIAMS. 

